Start with the work, not the format
A website is primarily a public communication layer. A digital system coordinates information, decisions or actions. Many projects need both, but treating them as the same thing leads to weak requirements and the wrong implementation.
Before choosing a platform, map what the visitor needs to understand and what the business needs to happen behind the interface.
Signals that a website is enough
A focused website may be the right answer when the main need is to explain services, establish credibility, publish useful information and create qualified enquiry paths.
That does not make the project simple. Content architecture, performance, accessibility and measurement still determine whether the website works.
Signals that the operation needs a product
Repeated handoffs between spreadsheets, messages and separate tools often indicate a workflow problem. Customer status requests, internal approvals, bookings and tracking are common examples.
A useful first release should solve a clear workflow rather than attempt to reproduce every existing process at once.
Define the smallest connected answer
Good discovery separates public content, customer actions and internal operations. From there, the team can decide whether to build a website, a portal, an internal tool or a staged combination.
Technology comes after that decision. The shape of the problem should determine the shape of the system.