This web page is associated with a book called called Hermeneutics in Agile Systems Development.
The book can be bought at: https://play.google.com/store/books/details/Dr_Jerome_Heath_Hermeneutics_in_Agile_Systems_Deve?id=mi6VBQAAQBAJ
The book gives a more complete explanation of these issues and includes a number of related topic discussions. The combination develops the understanding of the concepts of Agile software development.
The textbook for context calculus:
Agile is the new world view of systems development. Structured design is being relegated to systems that have a short development time, the way to develop the software is already known (there is no need for design), and the system will not change in any way during the design.
The main strengths of Agile methods are:
Visibility (through the looking glass)
Adaptability (context calculus)
Business Value (incrementally increasing the value)
Less Risk (changes are made on a Just In Time bases)
Context Calculus is the calculus of contexts. It refers to the incremental and iterative way of solving problems where there are multiple contexts involved. Incremental and actual changes and improvements are combined in an iterative cycle or spiral to produce real and rapid changes that result in very useful solutions.to problems. This is Agile Systems Design.
Through the looking glass is a rule requiring openness and visibility of all efforts related to solving the problem. This includes making sure all stake holders completely understand and are part of the process of developing the solution. Context Calculus is a reference to mathematics as a theoretical base, but the solutions are based on hermeneutics.
The series of books by Dr. Jerome Heath:
Seven Covers