Support officer volunteer volunteer roles in Manchester

Our County Representatives (CR) will support our Fundraising Team by being the public face of Combat Stress in their local county, and will help build support from individuals and groups by raising awareness and funds. Income generation is key to our continued success and the support of volunteers enables us to raise more funds to support former servicemen and women, so that when a veteran is having a tough time, we’re there to help tackle the past and to help them take on the future.

Hours:The role is flexible. You can give as much or as little time as you are able. However, we do ask you ideally commit enough time to build meaningful awareness and support on your base.

What are the benefits of volunteering for Combat Stress?

• A full induction to Combat Stress and its work, including training and appropriate materials to support you in the role such as t-shirts, banners and cheer sticks. 
• Ongoing support, advice and guidance from the Senior Challenge Officer. • Learn and develop fundraising skills.
• Meet new people and be actively engaged in your local community.
• Helping our fundraisers to feel great and keeping them motivated throughout their challenge.
• Receive reimbursement for out of pocket expenses 
• Be part of the UK’s leading Charity for veterans’ mental health.
• Have the reward of knowing you will be making a positive contribution to the lives of UK Veterans and their families.

About Roots Academy. 

Roots Academy’s Vision.

A generation of young Muslims who embody and promote a God-centred way of life.

At Roots Academy, we’ve built a learning experience that’s changing the lives of the ummah’s future leaders, change-makers and visionaries. Our Mission is to deliver a structured and transformative education in the Essentials of Islam in a way that lowers barriers to access, develops a deep certainty, and inspires action.

Why Does Roots Academy Exist?

Crisis of Faith: 1 in 4 young Muslims are leaving the religion due to various factors, primarily the pervasive anti-religious content and temptations they encounter online and offline. 

Roots Academy exists to bridge this gap by providing a structured and transformative Islamic education that speaks directly to the needs and challenges of young Muslims today, delivered in an engaging and accessible form that removes barriers to access and provokes thought and action.

Role Summary.

To bring our vision to life, we are looking for a dedicated person to play a vital role in managing and strengthening our relationships with partner organisations (such as university Islamic Societies), with a focus on marketing and growth. You will work closely with external partners to increase the number of students attending Roots workshops through creative and innovative methods.

Key tasks

• Marketing Support - Provide guidance and resources to partners for marketing Roots workshops effectively, including sharing marketing collateral and leading growth initiatives.

• Performance Monitoring - Monitor the marketing efforts of partner organisations, track key performance metrics, and provide feedback and recommendations for improvement.

• Communication Liaison - Serve as the primary point of contact through social media between our organisation and partner organisations, facilitating clear and consistent communication channels.

• Training and Onboarding - Conduct training sessions and onboarding for new partner organisations to familiarise them with our brand guidelines, marketing strategies, and communication protocols.

• Collaboration - Coordinate cross-functional efforts with internal teams, such as marketing, design, and external partnerships, to ensure alignment with partnership goals.

What we’re looking for

• Passion for Islamic education and the development of young Muslims. 

• Creative ideas and ability to think outside the box.

• Excellent interpersonal and communication skills.

• Ability to multitask successfully.

• Proficiency in project management and organisational skills.

• Analytical mindset for assessing results and suggesting recommendations.

What we have to offer

• Be part of a team of 100+ dedicated volunteers across the UK, Ireland, Canada, US, UAE and Australia.

• Receive continuous rewards for those that seek Islamic knowledge from the Roots platform. 

• Be a part of a growing organisation that aims to revive and educate Muslims from a grassroots perspective.

• Receive in-house tarbiyah sessions to develop your deen. 

Please note this is an unpaid volunteer position. 

Volunteers are entitled to claim expenses incurred for food, travel and equipment, in line with our Expenses policy.

We are looking for a finance professional to join our engaged and friendly board as Treasurer, with specific oversight of the charity’s financial management. While day-to-day financial administration is carried out by employees or external providers, the Treasurer works closely with them and the Board to ensure sound financial governance. The Treasurer provides financial leadership, helps trustees understand the organisation’s finances, and ensures that the charity meets its financial and statutory obligations.

You will have a qualification in Financial Management, Accounting, or Audit, or perhaps be a senior Finance Manager or Director in a charity. We welcome applications from people for whom this is their first Treasurer role, but we are seeking candiates who have some understanding and/or experience of the charity sector.  We are willing to provide access to training around the treasurer role, but a basic knowledge of charity accounting and financial management would be a strong advantage.

You will have the ability to communicate financial information clearly to those without financial expertise and be a strategic thinker, with the ability to balance financial scrutiny with broader trustee responsibilities.

Our board meet once a month (either virtually or in person in London) for around 90 minutes. We aim to have strategy days twice a year. You will meet with the CEO and Finance Manager once a month, and be available for ad hoc emails, advice. Trustees are usually appointed for a three-year term, which can usually be extended. 

You will also bring a commitment to the values, aims, and objectives of the charity, and a desire to help children and young people who have experienced grief.

Do you have what it takes to be the new lead for our Lay Advisory Group?

Kidney Research UK’s Lay Advisory Group are currently looking for a new lead. In this vital and rewarding role, you would help ensure that people affected by kidney disease influence all aspects of our work. As lead of the Lay Advisory Group, you would have a key role within the charity championing the involvement of patients to transform kidney health and presenting patient views at our trustee board meetings.

The Lay Advisory Group helps drive and strengthen patient and public involvement (PPI) within Kidney Research UK and provides opportunities to influence change externally to help transform kidney health. This is a senior volunteer role and will provide effective leadership for the Lay Advisory Group and its work.

After leading the group for five successful years, the current lead is stepping down, so we are looking to appoint a new lead. 

The Pirate Castle is a buzzing charity based in the heart of Camden.  From our iconic castle base we offer boating, kayaking and canoeing as well as community space to hire.  As we enter our 60th anniversary year, we are looking for a Company Secretary for our engaged trustee board to minute our meetings and to lead on governance and compliance matters.  We look forward to hearing from candidates with governance experience who are keen to contribute to the future of a well-loved community charity as it reaches a major milestone.

Carers UK is the national membership charity for the millions of people in the UK who are unpaid carers. As an organisation we provide expert advice and information for carers, campaign for greater recognition and support for carers, and use our experience and expertise to help other organisations do more for carers. Our Board of Trustees plays a vital leadership role in the work we do while ensuring the charity is equipped and governed effectively, establishing and monitoring strategy and ensuring we are true to our values and keep carers at the heart of everything we do.

We are now seeking to appoint up to four people to join our Board of Trustees, to steer us towards our vision of a world where carers are recognised, valued and supported.

It’s an exciting time to be part of Carers UK, as we launch our new strategic review in 2026. Our Board is instrumental in ensuring we make the future really impactful for carers through our vision and strategy while fulfilling all our obligations as a charity.

We are also seeking to appoint a Nations Trustee for Scotland. In addition to the general responsibilities of a trustee, the Nations Trustee will be expected to ensure that the Carers UK Board is informed on key issues affecting carers in their Nation. 

To find out more about this opportunity and apply, please download the Trustee recruitment pack from our website

Carers UK is committed to representing the diverse society in which we work and actively encourages applications from people with current or recent experience of caring from all backgrounds and experiences.

Applications close at 9.a.m. Monday 23rd February 2026

Location: Home-based but with regular travel, including to periodic board meetings in London or other locations within the UK

This is an opportunity to chair a charity transforming lives by helping more people experience the positive impact of learning. You can help shape the future of this remarkable charity and lead the Board of Shannon Trust to broaden, deepen and mature what we deliver.

Who we are

Picture this: a person in prison who struggles with literacy and numeracy reads their first sentence, they write their first letter home to their children or completes their first numeracy task. They begin to imagine a future beyond the prison walls.

This is what happens when someone learns with Shannon Trust, and it happens thousands of times each year across prisons in England, Wales and Northern Ireland. Currently, 65% of people in prison can’t read, or struggle to. Even more struggle with numeracy.

These are not just statistics; they represent people who have been locked out of opportunity, who struggle with daily tasks, such as helping their children with homework or filling out a job application. At Shannon Trust, we believe everyone deserves the chance to learn, and that literacy and numeracy skills help build the foundations upon which people can rebuild their lives.

Where we are now

Shannon Trust has experienced remarkable growth over recent years. We have gone from a team of twelve people to one hundred staff today, supported by a volunteer base that brings us close to 250 people working to change lives through learning. The core of what we do is one-to-one peer mentoring in prisons. In 2025 alone, more than 11,000 learners used our reading and numeracy programmes, with 2,000 new volunteer peer-mentors trained to support them. We work in around one hundred prisons across England, Wales and Northern Ireland, delivering our Turning Pages reading programme and Count Me In numeracy programme. We are increasing our reach into the community, too. This growth is the result of sustained focus, strong relationships with funders who believe in our work, and the proven impact of our peer-led learning model.

What we are looking for

We are looking for a Chair who is strongly motivated by our cause, with a genuine empathy for the people we serve and a commitment to the person-centred language and inclusive thinking which are woven into everything we do. You will bring an engaged and engaging leadership style, have resilience and a personal gravitas.

You will be someone who is comfortable with complexity as we shape our organisation for the next chapter of our development. You will understand the importance of process, culture, and effective operations as the means of delivering a successful strategy and sustaining an organisation.

You will be someone who can help us be better advocates whether that is supporting our Chief Executive to build relationships with policymakers, helping us think through how we position ourselves in the education and criminal justice landscape, or using your own networks to create opportunities for Shannon Trust to influence and inform. We need a Chair who sees advocacy as part of the role.

Most importantly, our new Chair must be a strong partner for our CEO, a mentor, challenger and support.

Please click 'Redirect to recruiter’ to be redirected to the Peridot Partners website, where you can find full details of the candidate profile and register your interest to apply.
Applications for this role close at 9.a.m. Monday 23rd February 2026

Join White Ribbon UK as a Trustee and help us end men’s violence against women. We are looking for someone who can bring experience, insight, and commitment to our board.

White Ribbon UK is the leading charity in England and Wales working to engage men and boys in ending men’s violence against women and girls. We do this by challenging harmful attitudes, behaviours, and systems that allow gender-based violence to continue. We encourage men and boys to take responsibility and become allies in creating a safer, more equal society.

As a trustee, you will help guide the charity’s work and make sure we stay true to our mission. You will work with other trustees and the CEO to oversee strategy, finances, and risk, and ensure the charity is well run and sustainable. This is a voluntary role; reasonable expenses will be reimbursed.

What You’ll Do

• Attend six board meetings a year (mostly online) and read papers in advance.

• Help set the charity’s strategy and monitor progress.

• Support and challenge the CEO and senior team.

• Uphold our values and commitment to equality, diversity, and inclusion.

Time Commitment

Around one day per month, including meetings and preparation.

Who We’re Looking For

We are in a period of growth, expansion and change.  So we are looking for people with  previous experience serving on a charity trustee board, with an understanding of small charities, who are keen to help us grow and an understanding that we will need to take some risks. We are looking for someone who understands charity governance and can bring skills in areas such as influencing policy makers, campaigning, fundraising, finance, and general governance.  You must share our commitment to ending men’s violence against women, social justice and gender equality and be willing to give your time and energy to help us achieve our goals.

Why Join Us?

By joining White Ribbon UK, you will help shape the future of a charity determined to make real change, by increasing our impact and reach. You will develop your skills, expand your network, and make a meaningful impact on society.

Closing date for Applications - Monday 26th 2026 (midnight)

If you would like to find out more before applying you are welcome to join us for a Discovery Session online on Tuesday 20th January at 6.30 pm.  Open to all, an Informal session to find out more about the work of White Ribbon and what we do, with a presentation from the CEO and a chance to hear from some of the trustees. 

We hope successful candidates will be able to join us in person at our annual Away Day on Tuesday 10th February – please save the date!

Bristol Avon Rivers Trust is a growing charity supported by a skilled team and a large group of volunteers. Our board of six trustees provide strategic oversight, ensure good governance, and are accountable to the Charity Commission for delivering our charitable purpose. With our turnover and impact increasing, we are seeking a new Trustee (Treasurer) to strengthen our financial leadership.

About the Role:

The Treasurer works closely with the CEO and Finance Officer to ensure strong financial governance and effective management of financial risk. You will provide clear financial insight to the board, help shape strategic decisions, and oversee statutory reporting and compliance.

Key Responsibilities:

• Ensure the charity maintains proper accounts and robust financial controls
• Oversee and present budgets, management accounts, annual accounts and financial statements
• Highlight key financial points at the AGM and board meetings
• Review financial performance and support long-term planning
• Lead on finance, reserves and investment policies
• Liaise with the CEO, finance staff, and external auditors/independent examiners
• Oversee statutory submissions to Companies House, the Charity Commission and HMRC

Trustees attend four online board meetings per year plus the AGM, with some additional time needed to review papers.

Who we’re looking for:

We welcome candidates who are:

• Strong communicators able to explain financial information clearly
• Risk-aware and proactive, with a solutions-focused approach
• Collaborative team players who can challenge constructively when needed

Desirable Experience

• Qualified chartered accountant or similar financial qualification
• Audit experience, including managing external audit providers
• Understanding of charity finance, reporting, fundraising, investments or pensions

Why join us?

This is an opportunity to use your financial expertise to support a dynamic charity working in a fast-changing environment. You will play a key role in shaping our growth, strengthening governance, and supporting impactful work for our rivers.

Harry’s HAT is a UK-based charity focusing on paediatric hydrocephalus.

Our mission is to make life better for children and their families who are affected by hydrocephalus. We work towards this through:

1. Awareness: delivering workshops and training to help people understand paediatric hydrocephalus.

2. Research: supporting research and funding training for professionals in health, social care and related fields.

3. Signposting and support: helping families find organisations that can offer advice, guidance and peer support.

4. Campaigning for early diagnosis of the condition.

We are now recruiting a Governance Trustee to strengthen our Board and help ensure our governance framework remains robust as the charity grows.

The Governance Trustee will play a key role in supporting good oversight, strong policy development and effective decision-making across the organisation.

Key responsibilities of the role:

• Supporting the Board in maintaining strong and effective governance.

• Helping review and develop the charity’s policy framework, including safeguarding, governance, finance and operational policies.

• Ensuring policies are reviewed regularly, compliant with current legislation and embedded in day-to-day practice.

• Working closely with fellow Trustees and the CEO to ensure decisions reflect our mission, vision and values.

• Contributing to the work of the Fundraising and Risk Group, ensuring governance considerations inform the group’s discussions.

Attending and actively participating in:

• Six Board meetings per year (usually held on the third Sunday of every other month from 18:00–19:30 via Teams).

• Quarterly Fundraising and Risk Group meetings (1.5 hours, evening).

• Two 1-2-1 meetings per year with the Chair of Trustees.

• The charity’s AGM and any additional meetings or events as needed • Providing occasional input on matters raised by the CEO, Trustees, staff and volunteers.

• Acting as an ambassador for Harry’s HAT and representing the charity with professionalism and warmth.

#trustee #governance 

Are you passionate about building a more inclusive, sustainable and resilient economy? Are you looking for a meaningful way to use your finance expertise?  ECU is a small, dynamic non-profit working to transform the economy. Join us!

What will you be doing?

In addition to the responsibilities of all board members, the Treasurer will: 

1. Support the Board to review and monitor ECU’s financial performance and sustainability
2. Ensure the Board receives timely, accessible and accurate financial information
3. Support the team to develop and maintain robust and proportionate financial policies, processes and risk management systems

What are we looking for?

• Commitment to ECU’s mission and values
• Commitment to the legal duties and responsibilities
• Financial management experience, policies, risk
• Qualifications
• Able to interpret, interrogate and communicate financial information
• Work as part of a diverse team, and devote the time 

Desirable - treasurer experience

What difference will you make?

We have an ambitious vision for change, a strong analysis of the opportunities and barriers to progress, and a clear view of our role in building a better economy. Our board is committed, collaborative and inclusive, with a strong understanding of its role and remit, and a culture of open dialogue.

Before you apply

• Your interest in this role and what you could bring to it
• What would you want to learn and gain?

Interview 25 Feb in London (expenses paid)

Introduction:

Thank you for your interest in becoming a trustee and Vice Chair of Harry’s HAT. Please read this trustee application information pack carefully before completing your application.

Who we are:

Harry’s HAT is a UK based charity focusing on paediatric hydrocephalus. Our mission is to make life better for children and their families affected by the condition. The Board of Trustees works to achieve this through:

• Raising awareness of paediatric hydrocephalus through workshops and training.
• Supporting research and funding training for front-line medical health and social care professionals.
• Signposting families to trusted organisations and providing access to peer support.
• Campaigning for earlier diagnosis.

The opportunity:

Harry’s HAT is entering an important phase of development and the Board of Trustees is seeking a motivated individual to join as Vice Chair of Trustees. This voluntary trustee role supports the Chair of Trustees and the Chief Executive Officer in ensuring strong governance, clear policy development and effective leadership across the charity.

Key responsibilities:

The Vice Chair trustee supports the Chair of Trustees in providing leadership to the Board and maintaining effective governance. Working closely with the Chair, CEO and fellow trustees, the Vice Chair supports strategic direction and ensures trustee decisions reflect the charity’s mission vision and values.

The Vice Chair trustee contributes to the Fundraising and Risk Group ensuring governance and policy considerations inform discussions and decisions. A key responsibility is leading trustee oversight of policy development including safeguarding, governance, finance and operational policies, ensuring they are compliant regularly reviewed and embedded in day-to-day practice.

The Vice Chair also supports trustee recruitment and development and acts as a trustee ambassador for Harry’s HAT representing the charity externally with professionalism and warmth.

Meetings and time commitment:P

Trustees are expected to attend:

• Six trustee board meetings per year held online.
• Quarterly Fundraising and Risk Group meetings.
• Two one-to-one meetings per year with the Chair of Trustees.
• The AGM and occasional additional trustee meetings.
• Mandatory online training and timely communication.

Skills and experience:

The ideal trustee will have experience of charity governance and trustee leadership. Essential experience includes chairing or supporting a board or committee, understanding trustee legal duties, experience of policy development, strategic awareness and confident communication. Trustees must exercise discretion and confidentiality. DBS clearance is required.

Desirable experience includes previous trustee or Vice Chair roles familiarity with small charity governance and understanding of safeguarding and risk management.

Personal attributes:

Trustees should demonstrate integrity, fairness and impartiality. The Vice Chair trustee must be committed, collaborative and able to build positive working relationships with trustees staff and volunteers.

Term and remuneration:

Trustee appointments are voluntary with reasonable expenses reimbursed. The initial trustee term is one to three years with a three month probation period.

#Chair #Chairoftrustees #trustee 

After six transformative years, our Chair is stepping down. This is your chance to lead a charity that's reached 2.5 million LGBTQ+ young people – and heard them say "I'm still alive because of you."

Full description:

It Gets Better UK is at an exciting moment. Over the past six years, we've grown from a grassroots initiative into a charity reaching millions of LGBTQ+ young people across the UK. Through digital storytelling, educational resources, and community engagement, we're combating isolation and discrimination – ensuring every young person knows their power and worthiness as individuals.

Now we're looking for our next Chair of Trustees to lead us into our next chapter.

What makes this role special?

This isn't just governance for governance's sake. The impact is immediate and profound. Young people tell us our content helped them through their darkest moments – some say we're the reason they're still alive. You'll work with a passionate board and our CEO/Founder Dr Alex Rhys OBE, whose vision, resilience and commitment to the mission has been extraordinary. The team – both volunteer and paid – is genuinely special.

The opportunity:

You'll provide strategic leadership at a pivotal time, helping us build on our momentum while navigating the challenges every growing charity faces. We need someone who can balance big vision with practical governance, understand charity finance and risk, and chair meetings that drive real decisions while creating space for genuine discussion.

What we're looking for:

Essential:

• Demonstrable commitment to LGBTQ+ equality and youth rights
• Proven governance experience, ideally as a trustee or board member
• Strong understanding of charity governance and trustee responsibilities
• Excellent chairing skills with ability to facilitate constructive discussions
• Strategic thinking balanced with practical implementation
• Strong interpersonal skills and emotional intelligence
• Commitment to equality, diversity, and inclusion

Desirable:

• Experience in charity/voluntary sector, particularly youth or LGBTQ+ organisations
• Understanding of digital engagement and online community building
• Financial management and fundraising knowledge
• Networks within funding, policy, or LGBTQ+ advocacy circles
• Experience with organisational growth and transformation
• Knowledge of safeguarding frameworks

Why now matters:

LGBTQ+ young people face unprecedented challenges – rising hate crime, attacks on trans rights, mental health crises. Our work has never been more vital. The next Chair will help ensure we're here for every young person who needs us, with the governance, strategy, and sustainability to deliver real impact.

If you care about LGBTQ+ equality, have governance expertise to share, and want to make a genuine difference, we'd love to hear from you.

Time commitment: Approximately 6 hours per month | Term: 3 years (renewable) | Location: Remote (quarterly video meetings, occasional in-person) | Deadline: 10pm Sunday 1st February

This Role Is the Backbone of the Content Ecosystem
Content creation without structure becomes chaos. Tell My Truth and Shame the Devil C.I.C. is intentionally recruiting hundreds of content creators. That level of scale requires rigorous systems to ensure nothing is lost, duplicated, misused, or unsafe. The Content Librarian / Digital Asset Manager is the role that turns volume into value. This is not a passive admin role. This is infrastructure-building.

Purpose of the Role
The Content Librarian ensures that every piece of content created across the organisation is:

• Logged
• Tagged
• Categorised
• Approved
• Stored
• Accessible
• Reusable

This role protects:
Brand integrity

• Survivor dignity
• Safeguarding compliance
• Operational efficiency

Without this role, scale fails.

Experience Qualification and Requirements

Essential:

• Experience in digital asset management, content operations, knowledge management, archiving, or media library administration.
• Experience creating and maintaining structured systems (folders, naming rules, tags, metadata) at scale.
• Experience logging and tracking assets accurately, with strong attention to detail and consistency.
• Experience working across teams (creative, campaigns, operations, safeguarding) to coordinate content flow and accountability.
• Highly organised approach with strong file hygiene, documentation discipline, and ability to maintain standards consistently.
• Strong attention to detail, including version control, permissions, approval status tracking, and prevention of misuse.
• Ability to think in systems: designing processes that make content searchable, reusable, and scalable.
• Strong communication skills for clarifying requirements, flagging risks, and keeping stakeholders aligned.
• Ability to work independently, manage priorities, and maintain reliability in a high-volume environment.

Desirable experience 

• Experience supporting creative teams with admin/ops or project coordination.
• Familiarity with content governance: approvals, safeguarding clearance markers, and usage rights tracking.
• Experience building content calendars or supporting distribution workflows.

Helpful tools (welcomed, not required)

• Google Drive, SharePoint, Notion, Airtable, or similar documentation / content systems.
• DAM platforms or structured media library tools.
• Familiarity with file naming conventions and metadata frameworks.

Training & qualifications

• Formal qualifications are not required.
• Qualifications in library studies, information management, or organisational management are desirable.

Main Responsibilities/ Key Duties

• Build and maintain a central digital content library that supports scale, reuse, and consistent access across the CIC.
• Create and manage structured systems for content organisation, including naming conventions, folder structures, tagging rules, and metadata standards.
• Log and catalogue all incoming content from content creators, podcast teams, campaign teams, and ambassadors, ensuring every asset is captured and traceable.
• Track key content status fields, including approval status, usage rights/permissions, platform suitability, and safeguarding clearance.
• Ensure content is easy to find and easy to reuse by maintaining accurate tags, searchable metadata, clear versions, and consistent file hygiene.
• Manage version control and “single source of truth” practices, preventing confusion, loss of quality, duplicated assets, or incorrect public release.
• Coordinate with the Social Media Director, Safeguarding Officer, Campaign Managers, and Automation & Systems teams to align library structure with workflows and publishing needs.
• Flag risks, gaps, duplication, or misuse (e.g., missing consent, unclear rights, unapproved assets, outdated versions, incorrect tagging) and route issues to the right owners.
• Support content distribution readiness by ensuring assets are stored in the correct location, correctly named, correctly tagged, and marked for approved use.
• Contribute to continuous improvement by refining systems, templates, and guidance as volume increases and the C.I.C scales.

This role is not suitable if you:

• Dislike structure or admin
• Prefer fast-paced creative chaos
• Struggle with confidentiality
• Are uncomfortable working with sensitive content
• Need immediate paid work

Important to Be Clear

This is:

• A volunteer role within a Community Interest Company
• Unpaid during the build phase
• A critical infrastructure role

Paid opportunities will be introduced as the organisation becomes financially sustainable.

Next Steps

Shortlisted applicants will be invited to:

• A systems-focused discussion
• A values and safeguarding conversation

If you are someone who understands that order creates safety, systems create scale, and structure creates longevity, this role is for you.

A Final Word
Content systems are about people, not files.

If you know that:
Order protects dignity and safety
Structure is a safeguarding issue
Consistency keeps systems trustworthy