The characteristics of an architecture can be defined once the specific requirements of the architecture have been identified. 
The extent of the architecture depends in part on the level of autonomy of the different business departments. 
The aspects to be documented are dependant on the business objectives. 

For example:

• The introduction of a new product will require insight into the aspects: processes; data and applications however the technical architecture may be evident;
• When implementing a common virtual work environment the emphasis is on the middleware; platforms and networks;
• During a dramatic change in the organization, all architecture aspects will require addressing and all columns of the DYA framework will need completing.   

Finally, the detail and format will determined based on the expected usage and target group. For example top management will require a high level discussion piece whereas software developers will require concrete guidelines.