The structural principles this is from the book written by barber van hale and Larry Goldberg, so this is in relation to business logic so from business roles to business logic in a business this there are different business roles those business roles will be applied in a business logic if you are creating a business system software or an electronic system that where we could embed the business rules as business logic, so business logic is simply a set of business rules represented as atomic element of conditions leading to conclusions and as such business logic represents business thinking about the way important business decisions are made so we have these business rules than from that business rules we develop a system and with that system we implemented the rules as business logic so that we can come up to our decision okay so with the book written by on Haley and Goldberg there are seven principles so we have the tabular shape the heading the cells the root the conclusions conditions.
And connections these seven principles are what we are going to talk about today so let’s jump into the first principle, so this is the first principle the fundamental structure of a decision model is called a ruling family and has stored emission dimensions one dimension is the heading and the other dimension is the body or and formally the basic element in a decision model resembles a two-dimensional table as you can see in the picture in the example, so that is our model and that the heading one heading two three and four that is the principle one specifically talks about the principle one so now that the principle one talks about these headings one dimension is the heading and the other dimension is the body, so this is the first dimension the heating and this body here is the second dimension so dimension the first dimension is the headings the second dimension is the body of the table so it represents a or it resembles a two-dimensional table okay.
So that is the fundamental structure of a decision model this is where we plot our rules and condition and conclusion for the decision model, so the second principle is the healing of a role family is a set of fact types or informally the column the labels represent different kinds of information so the previous slides talks that the first principle is about the healing and the body the two-dimensional table that is the basic structure of a decision model now in this principle too it talks about the heating so it says that the heating should be an effect types or in informally the column labels, so these are the labels, okay, for example, the person-years at current the blue year person number of jobs in past five years person employment history, so these three are the column labels or these are what we call fact types this represents different kinds of information.
The first column label or fact types give information about the person’s current employer current years in uh years of the current employer so like um if you are if the person is employed then how many years has its covers as an employer as an employee to that business that’s the information first in the second column talks about the number of jobs in the past five years so did the employee jumps from jobs to jobs to jobs so how many jobs it has for the past five years or now that kind of information and then the third one is about the person employment history so thus did that employee has a good history of employment or bad history of employment so what is a fact a common diminished definition of a fact is a pass of information so like, for example, a statistic or a statement of truth based on this the definition of fact in Encarta, so a fact type is simply the general classification of a fact or piece of information not the piece of information itself okay.
Now the answer to this or the content in the body for some years and current players say for example we put six here, so that number six is now the fact then let’s say for example a personal number of jobs in the past five years see the person has three different jobs and then the person employment history says well so the six the three and the good are now the paces of information that is the fact regarding the fact types or the column labels okay, so that is the principle number two again the principle number one talks about the two-dimensional table structure that the fundamental structure of a decision model is it has heating and it has a body and then in principle number two a heading should be of a set of types okay then principle number three the content of each seal of Arnold family is an atomic logical expression conforming to the healing or informally each cell is a logical expression with operators and appearance.
So if we look at this from the previous table we now included content on the body so what it says in principle number three is that each sale is a logical expression of expression with operators and operands so in here this is the operator s list done is less done these are the operators is less than is greater than and then the operands are this one this three these eight, so this is operator this is operand okay so we might say for example is less than one so you can convert this into less than one this two distance one this is less than one this is greater than ah no this is less than three and this is greater than eight so it’s good and this one to equal to poor okay so so as you can see the greater than the least then and the ease those are what we called operators logical operators logical expressions okay logical expressions with operators and appearance okay okay.
So as a whole say, for example, this is less than one is what we call the logical expression like this is greater than 8 is a complete example of logical expression then, for example, is good it is also a complete example of logical expression why is it those are an example of logical expression because it has operators and operands, so the operators are the symbol less than or greater than or the equal and then the operands are said for example the right and left operand so for example, uh 2 is greater than 1 so this two and this one are the operands the left and right operand one is less than two so left and right operands or is good, so the person is person employment is equal to good so okay that is the principle number three so the content or the body should be composed of operators and operands that makes a logical expression which conforms to the column label or the fact types or the heading.
So with that we are we have a complete set of um structure of a decision model so from an empty uh empty table two dimensional tables with heating and and the content or columns and rows than that of the principle number two that the reading should have effect types label a piece of information and then that of the body should be in a logical expression which composed of operators and operands now we have the principle number four the populated cells playing the role of conditions in fear the corresponding populated cells playing the the role of a conclusion or informally each row represents conditions leading to conclusions the way business leaders want it to be one that want or need it to be so the principle number two talks about the conditions which infer to correspond which infer to the conclusion to simplify the thought is that the conditions under this first column and the conditions under this second column are the reasons all the the basis of the content of the third column here.
So the answer of this column and the answer of this column will be the reason to the conclusion see for example in this in this table or on this structure, so the fur person requested loan amount is less than 100 000 okay then person secured amount is nothing then the answer is accepted but if um the condo in the condition the person requested loan is greater than 100 000 and then the person secured amount as zero it is rejected so as you can see through this condition and this condition the answer to these two conditions will be the basis of this conclusion okay that is the principle number four so all uh content or all value or all results posted in your conclusions are basing on your conditions, okay, so there is no conclusions that do not conform or that does not base on the conditions so from conditions led to conclusions so if both conditions of the requested loan and the person secured amount is good.
So shall we say good then it might have a good conclusion but if the condition is bad and the second condition is also bad then it would have a bad conclusion, so the condition has a negative and a positive so it might have either a negative or positive conclusion depending on the role of the business okay that is principle number four so an example of a conditional competition?