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Functional requirement for a website,

and why do you need one?

A functional requirement document identifies what a new system is supposed to accomplish.

It focuses on the desired results rather than the design. Populated with the right information, it is one of the most useful tools in shaping a successful project. It lets companies like us know what you want, so we can work out how best to do it. Here are our five top points on how to communicate this:

Functional requirement for website


Firstly, we want to write an introductory statement of what the application is meant to do. This doesn't need to be complicated and may draw on your knowledge of the marketplace and any research you have done.



Objectives define the desired outcome.
This will set the benchmark by which the end product can be judged. The measurability of this can be in terms of time scales, resources, targets and goals. Some examples could be to automate the workflow of your organisation, to integrate with other systems or meet future scalability requirements.
Functional specification

Functional specification

The functional specification is the response to your objectives.
This describes the interfaces that the product should support. For example, it could define a numeric or data entry for a  field, in a form. Or who gets access to the different areas, or the the workflow of your screens.

The user can select from 3 different membership plans

  1. Bronze,
  2. Silver,
  3. and Gold.

Once a membership plan is selected, the user will be asked to register and make payment before their membership subscription is activated. Once activated, a welcome email will be sent to the user account, welcoming them to the community.

page Elements

1. Bronze plan
2. Silver plan
3. Gold plan
4. Subscription button


1. Name
2. Email
3. Password
4. Bill address
5. Payment method
6. Checkout button



Next, you want to think about your compliance.

The majority of organisations, if not all, are required to follow some level of compliance. It could include the GDPR data regulation, to the sales of goods act, or another legal requirement, or internal policy. If so, the application may need to work in a certain way to maintain compliance. It could be as simple as adding a GDPR notice to a registration form, data being is transmitted or stored in a certain way, or something else. 
Internal Requirements

Internal Requirements

Every business is unique. Your business may be dependent upon an internal system and may have specific requirements. This could be to interface with your intranet, or for it to make a call to an online service or something else!

You may also need to define internal processes, and who has access to what screens in your application? For instance, the data entry team can enter data but cannot approve or delete data. In contrast, System Managers can enter or approve data but can't delete, leaving only Administrators with the rights to delete.


Engage with your stakeholder

Defining your requirements helps to identify the behaviour, attributes and properties of the future system. Therefore, the main task of any functional requirement document is to ensure that all stakeholders understand what is needed and what is expected.

If you have a particular set of requirements and need some assistance, we can help!

It can drive down costs, boosts productivity & improves communication. 

* An initial hour consultation is free and will happen over Zoom or Skype. The supplementary costs for analysing, scope and writing a functional document will also be deducted on the proviso that get the job.  

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