The need for IT architecture has been growing over the last two decades.  Looking at the historic view of how information technology systems were developed, it started by replacing paper based and manual processes. Computers were able to perform tasks and processes faster and cheaper resulting in more process automation. However, initial use of technology did not have much of an architecture as we know it today. As organizations grew in size and processes become more complex, the dependency on technology and the need for proper design and architecture was needed. Large organizations began to realize that IT systems were getting out of control as they grew larger in size and it was time to put in place IT architecture discipline to govern the way systems were implemented and managed. There is a point where one becomes so dependent on technology and need architecture for running mission critical systems.

Factors highlighting the need for IT architecture include but not limited to:
• Effective management of complex systems.
• Cost reduction through standardization.
• Managing design risks.
• Proper documentation of systems.
• High level of communication through architecture blueprints.
• Improve systems quality.
• Increase project delivery success through proper design.
• Manage systems complexity and scalability.