Refernce for Thomas L. Saaty

Decision making with the Analytic Hierarchy Process (AHP) pdf file

Introduction
We are all fundamentally decision makers. Everything we do consciously or
unconsciously is the result of some decision. The information we gather is to help us
understand occurrences, in order to develop good judgements to make decisions about
these occurrences. Not all information is useful for improving our understanding and
judgements. If we only make decisions intuitively, we are inclined to believe that all
kinds of information are useful and the larger the quantity, the better. But that is not true.
There are numerous examples, which show that too much information is as bad as little
information. Knowing more does not guarantee that we understand better as illustrated
by some author’s writing “Expert after expert missed the revolutionary significance of what Darwin had collected. Darwin, who knew less, somehow understood more”.
To make a decision we need to know the problem, the need and purpose of the decision,
the criteria of the decision, their subcriteria, stakeholders and groups affected and the
alternative actions to take. We then try to determine the best alternative, or in the case of
resource allocation, we need priorities for the alternatives to allocate their appropriate
share of the resources.

All analysis Excel sheet Reports

In my case study of Alexandria ,Egypt i will take just an Example for Sources of pollution to make decision which one has more effective in pollution ( i.e pesticide - Heavy metal- Oil spill and Sewage as Alternative ) and use four criteria as contamination - deposit - degradable and seepage in other wise three sub-criteria degree ( High- Moderate - Low ) to evaluated the importance of Alternative (fig. 1)

Fig. 1

Table 2

The table 2 explain an Example for scale to evaluation and Table 3 the Matrix Decision Making for parameters