- Designing and implementing an architecture can often involve multiple people, groups, or departments. Everyone is going to have their own input, way of working, or interest in a particular output. You're aiming for the organization to come to a rational decision that everyone accepts. So managing the different people and perspectives is crucial to the success of the architecture development. The TOGAF framework suggest using principles to manage this. So, how do you use principles in enterprise architecture? Let's start by defining what we mean by principles. They're enduring rules that enable decision making and help to inform the organization on how to fulfill its mission. Principles should be generated by the chief or most senior architect. You'll also want to make sure that senior stakeholders are included in the process of creating them as they're likely to have useful input about the organizational context. You'll also want your architecture board involved. And check to see if the enterprise has any existing principles that will need to be adopted, such as employment, quality, or financial principles. Fortunately, you don't have to generate all of these principles from scratch. TOGAF dos have some ready to go ones that you can use or build on to meet the context of the enterprise. They're broken into four areas, business, data, application, and technology. When generating the principles, it's useful to put them into a standard format. A useful template for recording them would include a name, which should be memorable and express the essence of the rule, a succinct and unambiguous statement that communicates the fundamental rule, a rational or reason for the principle, with particular emphasis on the business benefits of adhering to it, and the implications, or impact, of abiding by the principle. You'll also want the principles to be consistent by making sure they're easily understood, everyone in the organization gets the principle and it can be implemented and applied easily. Robust, they can stand for a period of time without interference. Complete, they don't require any explanation or additional work to implement. And stable, they stand by themselves and don't require support. Principles can be used to establish the fitness for purpose of the architecture as well as its functionality, and lead to the successful implementation of strategic architecture. They can also be used to good effect in connection with architecture compliance assessments to make sure people are following the rules. Finally, it's worth noting that it's common for enterprise architects to orientate their entire approach to architecting around particular styles, two in particular, are highlighted in the TOGAF framework. Risk insecurity, now a fundamental parallel aspect to enterprise architecting. Service-oriented architecting, which is getting every more important as service-centric systems are developed, especially on the cloud. Crucially, to deal with these effectively, the style must be considered throughout the ADM. And that's it for this video. Next, we'll be looking at business scenarios and the DAP analysis techniques.