Integration? Combining?

I want to find out what effectiveness in aid delivery is?
To answer this question, first, I think I need to define several concepts.

Concept 1: Aid delivery
Aid delivery refers to any activity donor agencies conduct in order to convert their pledged aid budgets into concrete goods or services.
The goods and services include commodity, equipment, technical assistance, consultancy, cash transfer, and so forth.
In the case of funding to external entities for their developmental interventions, certain agreements have to be made between donor agencies and respective entities.
Cash transfer signifies direct transfer from donor agencies to governments of developing countries.

Concepts 2: Effectiveness in aid delivery
This refers to the extent to which prior agreed purposes between donor agencies and suppliers/ contractors on certain development interventions have been achieved.
The indicators will be derived from terms and conditions stipulated in respective agreement documents.

Next, I need to operationalise these concepts so that I could collect data in order to analyse either qualitatively or quantitatively, or combining them.
As has been shown in the Concepts 2 above, those indicators seem well suitable for qualitative analysis than quantative analysis. This is because they require to be analysed for their contents, rather than to be counted such as words or specific clauses of contract documents.
However, it may be possible later on to apply quantitative methods to capture the whole picture of practices in contractual relationships that donor agencies are conducting.

Since I have not known much about actual contractual practices of donor agencies, it seems more important first to investigate them from relatively smaller scale of samples.
It is expected that the qualitative analysis will in detail describe those practices, and may make it possible to generate some hypotheses, which may present issues to further make inquiries.
Then, these hypotheses will be tested by quantitative methods.

In this way, one of the weaknesses in combining the two methods will be that it has no systematice procedures.

This is the idea about integrating quantitative and qualitative methods in my research at the moment.