What should you have in hand at the end of each phase of the software development life cycle?
Published: Oct 17, 2026 · Last updated: Oct 17, 2026
At the end of every phase of the software development life cycle, you should hold something you can open, read and approve without a developer explaining it. Requirements end in a signed-off scope, design ends in wireframes, planning ends in an architecture note, building ends in working demos, testing ends in a test report, release ends in a checklist and the project ends in handover docs.
If you are a founder or business owner paying a team to build your product, your situation probably looks like this. There are weekly calls, everyone says things are going well, and yet you could not say exactly what was agreed, what has been built or what is left. You are paying for progress you cannot see.
Here is a simple test. At any point in the project, could you hand everything to a different team and have them carry on without starting over? If the answer is no, at least one phase ended without its deliverable.
Most SDLC guides are written for the engineers doing the work. This one is written for the person paying for it.
Why do so many projects reach the next phase with nothing to show?
Phases end without artifacts because development teams are judged on code, not on documents, and nobody on the buyer's side asked for anything else. Developers keep requirements and technical decisions in their heads. That works until someone leaves.
There are three usual causes, and none of them involve bad intent.
Agile gets read as "no documents". Agile cuts paperwork nobody reads. It never said to skip the decisions. A user story with acceptance criteria is a document. A recorded sprint demo is a document. Teams that drop both are not being agile, they are being informal.
The contract pays for effort, not outputs. If the agreement says "development services" and nothing more, there is no line that says what you receive when design finishes. So nothing arrives, and nobody is technically at fault.
You did not know what to ask for. That is normal. Nobody teaches founders the SDLC. But the team knows these artifacts exist, and a good partner hands them over without being prompted.
Knowledge that lives only in one developer's head is the most expensive kind you can own.
What does it cost you when a phase ends without a deliverable?
The damage rarely shows in the first month. It shows when something changes: a developer resigns, the vendor relationship sours, an investor starts due diligence or you want a second team to speed things up. Then every missing document turns into lost weeks.
Rework. Without signed requirements, every disagreement about what "done" means becomes an argument. The usual fix is rebuilding a feature you thought was finished.
Lock-in. Without an architecture note and ownership of the repository, cloud accounts and domain, switching vendors means reverse engineering your own product. Many founders stay with a team they are unhappy with for this reason alone.
Slow onboarding. A new developer with good docs is useful within days. Without them, weeks go into reading code and guessing why it was written that way.
Release risk. No test report means nobody can say what was actually checked. Your first real testers become your users.
Weak due diligence. Buyers and investors ask who owns the code, what it depends on and how it is deployed. Gaps here slow a deal down or lower confidence in it.
If you suspect your current project is already missing some of these, it is fixable. It is also far easier to fix in the middle of a project than at the moment you need to hand it over.
Do you need every one of these documents for a small project?
No. If you are building a simple marketing website, a throwaway prototype to test an idea with a handful of users, or an internal tool one person will use for a few months, a lighter set is fine. A one-page scope, a clickable prototype and ownership of the code will cover you.
The same applies if you are a technical founder writing most of the code yourself. You already hold the context. Write down the decisions you would forget in six months and keep moving.
The full set matters when customers, other people's money or sensitive data depend on the software, or when more than one team will ever touch it. For most funded products and most business-critical internal systems, that is the case from day one.
What should you sign off before any code is written?
Before development starts, you should approve three things: a requirements document, wireframes or a clickable prototype, and a short architecture note. Together they fix what will be built, how it will look and behave, and what it will be built with. Everything after this point is measured against them.
1. Signed-off requirements (end of discovery). Features written as user stories, each with acceptance criteria that say how you will know it works. It should also name the user roles, the integrations such as payments, email or your CRM, any compliance needs and, just as important, what is out of scope. Why sign it: it becomes the reference point for every "is this a bug or a change?" conversation.
2. Wireframes or a clickable prototype (end of design). Every main screen and the flow between them, usually in Figma. Click through it yourself on a phone. Check the empty states, error messages and permission screens, not just the happy path. Why: a change in Figma takes minutes. The same change after it is coded takes days.
3. An architecture note (end of technical planning). A few pages, not a novel. It should name the tech stack, hosting, database and third-party services, show how data moves through the system, say where personal data is stored and give the reason behind each major choice. Why: this is the first page any new team will read, and it stops the next developer from undoing a decision they do not understand.
A decision rule for this stage: if a vendor wants to skip straight to coding and "figure it out as we go", ask them to write requirements for the first release only. A short discovery phase saves far more time than it takes. Our custom software development guide covers how to scope that first release.
What proof should you get while the software is being built and tested?
During development you should get repository access from the first week and a working demo at the end of every sprint. During testing you should get a written test report that says what was tested, what passed and what is still open. If any of these is missing, you are relying on trust alone.
Repository access. The code should live in a GitHub, GitLab or Bitbucket organisation that your company owns, with the team added as members. Not the other way round. If the vendor owns the repository, what you own is a promise.
Sprint demos and release notes. Every one or two weeks, a demo on a staging environment you can log into yourself, plus a short list of what was finished against the user stories. Record the demos. Over a few months they become a plain-language history of the product.
A test report before each release. It should map test cases to requirements, show results on the devices and browsers you agreed, list open bugs ranked by severity, and say which automated tests exist and how to run them. "We tested it" is not a test report. If your team has nobody focused on this, independent software testing and QA is worth adding before launch.
If demos only ever happen on a developer's laptop, ask for a staging link. If there is still no staging link after the first month, treat it as a warning. We cover more warning signs like this in our guide to spotting an agency that is costing you more than it should.
What do you need at release and handover so another team could take over?
At release you need a checklist that has been worked through and signed by someone on the team. At handover you need documents, credentials and a walkthrough that let a team who has never seen the project run it, change it and deploy it.
The release checklist should confirm:
• backups are running and a restore has actually been tested
• monitoring and error alerts go to a named person
• secrets and keys are stored outside the code
• domain, DNS and SSL are set up and owned by you
• analytics and any consent banner are in place
• there is a rollback plan if the release goes wrong
• for mobile apps, store listings and a privacy policy are ready
For a deeper list, use our web app production readiness checklist.
The handover pack should include:
• a README that lets a new developer run the project locally
• the architecture note, updated to match what was actually built
• deployment steps, or the CI/CD pipeline that runs them
• every third-party account, who owns it and where credentials are kept
• API documentation for each integration
• a known-issues list and the open backlog
• a recorded walkthrough of the codebase
Ownership matters as much as paperwork. Every account, from the cloud provider to the app store, should be in your company's name. At Geminate Solutions, clients own 100% of the code and IP, and that is the standard you should expect from any partner.
What should you ask a development partner before the project starts?
Ask them to name, in writing, the deliverable for each phase and when you will receive it. A team that already works this way answers in minutes. A team that hesitates is telling you something useful.
• What will I receive and approve at the end of discovery, design and each sprint? Vague answers lead to vague outputs.
• Whose name will the repository and cloud accounts be in? The answer should be yours.
• Can I log into a staging environment in the first month? It shows they build in the open.
• Can I see a redacted test report from another project? It separates real QA from "we checked it".
• What is in your handover pack, and is it part of the scope? Handover treated as an afterthought is usually thin.
• If we part ways mid-project, what happens to the work in progress? An honest answer here builds more trust than any portfolio.
Then put the answers into the contract as a deliverables schedule, and tie each payment milestone to an approved artifact rather than a date. That one change keeps both sides focused on outputs you can actually hold.
Get a free review of your project's deliverables
If you are about to start a build, or you are halfway through one and cannot answer "could another team take over tomorrow?", send us what you have. That can be a scope document, a vendor proposal, a Figma link or access to a repository.
Geminate Solutions will tell you which phase deliverables are in place, which are missing and exactly what to ask your team for next. We sign an NDA before we talk and reply within 24 hours. You do not have to work with us to use the review.
Use the form on this page, or send us your project details here.
