This research work is to develop an expert system for human nutritional diagnosis which will be developed using a service-oriented architecture. The software is an expert system with a database containing an expert knowledge. The system runs on computer devices (laptop, desktop, and mobile phones) and offers smart features that evaluate the nutritional condition of an individual by assessing their physical characteristics and eating habits. We explain the knowledge engineering process used to develop the system, overview the system architecture and selected design tools, and summarize some preliminary results from the implementation. The program was developed using PHP programming language and MySQL. The language was chosen because of its easy syntax for developing Web-based applications....


Cover page 

Title page   

Approval page



Table of content



1.0 Introduction 

1.1 Background of the research

1.2 Statement of research problem 

1.3 Objectives of the study

1.4 Significance of the study

1.5 Scope of the study

1.6 Limitation of the study

1.7 Definition of terms


2.0 Introduction

2.1 Review of concept

2.2 Review of related work

2.3 Empirical studies

2.4 Theoretical framework

2.5 Summary of the review


3.1 Introduction

3.2 Feasibility study for a standard fish farm

3.3 Method of data collection

3.4 Data preparation

3.5 Program structure

3.6 File maintenance module

3.7 Main menu specification

3.8 Problem of the existing system

3.9 Justification for the new system

3.10 System modeling

3.11 Information flow diagram

3.12 System flow chat

3.13 Activity diagram

3.14 Program flow chart

3.15 Database specification and design


4.1 Introduction

4.2 Program language justification

4.3 Systems requirement

4.4 Implementation details

4.5 Procedure testing plan 



5.1 Summary

5.2 Conclusion

5.3 Recommendation


Source code


1.0 Introduction

Expert system for human nutrition analysis is an expert system for diagnosing, controlling, and monitoring human nutrition. The system assesses the physical characteristics of a user to determine their nutritional status and makes recommendations for reaching nutritional requirements and a balanced diet, as a consequence generating a knowledge database with the nutritional status and dietary habits for the user. The system generates challenges, alerts, and constantly motivates the user to use the application and improve their nutritional habits. The expert system is implemented using the C++ Expert System Shell, libraries (Laboratories 2012) and the C++ programming language running as a Web Service on a Window Web Server. The system calculates the BMI, Body Mass Index, as in Eq. 1 (OMS 2012), the ideal weight and physical contexture, frame size (Rivas 1991) and uses dietary information from (Bermudez 2012). This is our base for nutritional diagnosis on the proposed system. This system will be developed for all users as a tool to improve their eating habits and nutritional wellbeing. The goal is to incorporate the use of this application into their daily lives and help them acquire and maintain healthier eating habits.

1.1 Background of Study

An expert system or electronic diagnose system is a software-hardware system that attempts to reproduce the performance of one or more human experts, most commonly in a specific problem domain, and is a traditional application and/or subfield of artificial intelligence.

 A wide variety of methods can be used to simulate the performance of the expert however common to most or all are 

1) The creation of a so-called "knowledge base" which uses some knowledge representation formalism to capture the subject matter experts (SME) knowledge and 

2) A process of gathering that knowledge from the SME and codifying it according to the formalism, which is called knowledge engineering. Expert systems may or may not have learning components but a third common element is that once the system is developed it is proven by being placed in the same real-world problem-solving situation as the human SME, typically as an aid to human workers or a supplement to some information system.

As a premier application of computing and artificial intelligence, the topic of expert systems has many points of contact with general systems theory, operations research, business process re-engineering and various topics in applied mathematics and management science.

Two illustrations of actual expert systems can give an idea of how they work. In one real-world case at a chemical refinery, a senior employee was about to retire and the company was concerned that the loss of his expertise in managing a fractionating tower would severely impact operations of the plant. A knowledge engineer was assigned to produce an expert system reproducing his expertise saving the company the loss of the valued knowledge asset. An early commercial success and illustration of another typical application (a task generally considered overly complex for a human) was an expert system fielded by DEC in the 1980s to quality check the configurations of their computers prior to delivery. The eighties were the time of greatest popularity of expert systems and interest lagged after the onset of the AI Winter.

In like manner, developing one of such system to represent the repository of the knowledge of a medical doctor is as essential as any other expert system.  To this end, this project, Expert System for human nutrition analysis is a necessity.

It is also, necessary for human health risk to nutrition to be managed effectively because malnutrition can cause deformed health status. In the next chapter, the researcher will highlight more on human nutrition and analysis also on expert systems. 

1.2 Statement of Research

The eating habits of today’s Nigeria society are alarming. Obesity rates have increased making our country one of the most obese populations in the African region. Six in ten people suffer a disproportionate increase in their weight because of their poor nutritional habits (CACIA 2012). The prevalence of obesity, BMI > 30, is 59 percent (Rosero 2009). Studies estimate Nigeria will be one of the ten most obese and mal-nutritional populations in the world by 2020 (Euromonitor 2011).

This reality makes it essential to raise public awareness about the need for a much needed dietary improvement and encourage preventive care. Many people, and particularly students, cannot afford to consult a private nutritional expert (Morales 2012). One problem in healthcare is the lack of availability for frequently health monitoring. Health software offers less expensive solutions reducing the physician-patient physical relation and provides monitoring solutions. This system can help facilitate the distribution of nutritional information, learn to assess their own nutritional level, and acquire better eating habits to improve their current condition (CIGA 2007) and (Salud 2003).

Health care facility should be accessible by all at all times.  But some of the people that should access these facilities are far removed from these facilities.  More so, in the few available facilities, qualified medical personnel are always key issues that need urgent redress. 

In view of the foregoing, it would be of great necessity to provide an expert system that will provide a complementary medical service such as human nutrition analysis system where it can be accessed and used by the masses,, also to places where medical attention accessibility is a problem as well as healthcare facilities where qualified experts are lacking, hence this topic, Expert System or electronic diagnosis system on nutrition.

1.3 Aim and Objective of Research

The following points serve as the aim and the objectives of this research work.

1. To design a system an expert system that will be used in carrying out analysis on human nutrition.

2. A system that will suggest to the user his normal and balanced nutritional diet.

3. To develop a modern interactive diagnostic expert system that will aid clinicians/medical personnel in diagnostic procedures.

1.4 Research Motivation

The researcher was motivated to research on this topic “expert system for human nutrition analysis” because of his encounter on same issues and due to the difficulties I had, before I could get an analysis of my nutrition, I had to go a long distance to a nearby clinic and then diagnose, while I was being diagnosed by the doctor I had a thought “what if I do such a system, one that can tell the human nutrition analysis an expert system” from then onward I have to seek for solution to my thoughts. Therefore, with this research work, I hope to achieve my expectation.

1.5 Significance of Research

If this proposed prototype system is fully developed, will be very useful in many areas such as:

a. It will help to retain the skill of an expert medical doctor in case of any eventuality;

b. It can support academic development;

c. It can be useful in many hospitals, both private and government, cases where the expert is not on seat.

d. It can also be used in the laboratory for quick research work.

1.6 Scope of the Project

The scope of this work will include the following

1. A dynamic database system that can act as knowledge-based system

2. A complete model of an expert system to portray sample analysis

3. This system is based on human nutrition analysis

1.7 Limitations of the Study

The major constraint faced during the implementation of this work was finance.  This is among other frustrations such as program failures during modular construction stages.  Time was another important factor that limited the extent to which I want to research.

1.8 Definition of Terms/Variables

Diagnose: The identifying of an illness or disorder in a patient through physical examination, medical tests, or other procedures

Medical:  Relating to medicine, physical examination to determine health: a physical examination by a doctor to check

Expert:  somebody with a great deal of knowledge, skill, training, or experience in a particular field or activity - a medical expert 

Knowledge-based:  Information system that store wealth of one's knowledge 

Artificial intelligence result when machines are made to thick.  Artificial intelligence is a general term, which expert systems and robotics lie.  The expert system technology has been necessitated by the fact that some human domain experts delay some wonderful skill, which is lost whenever they die thereby leaving the future generation with little or nothing to inherit from their wonderful skill.  Hence they need the expert knowledge of a human being in a domain of activity to be stored in the computer such that computer mimic the reasoning of the expert in some way reaching the same decisions or conclusion as the expert himself and effectively replacing him.

Expert System: According to Daniel L. Stotink and his friends in a book “computer and applications an introduction to data processing” expert system is also a knowledge-based system.  It is a complex software (program), designed to imitate the thought processes and decision-making patterns of human experts in a given field.  The expert system is an off-spring of artificial intelligence (AI) and it is developed using the programming techniques of A1.  When the expert knowledge of human being in a domain of activity is stored in the computer.  Such that the computer repository of this expert knowledge in some way, reaching the same conclusion as the expect himself and efficiently replacing him, an expert system or knowledge-based system results.

Nutrition: nutrition is the combination of processes by which the living organism receives and uses the food materials necessary for growth maintenance of function and repair components parts

Nutrition: A science of food and its relationship to health and concerned with the part played by food factor (nutrients) in body growth, development and maintenance.

Protein: Protein is a bodybuilding material for all body parts, such as muscle, brain, blood skin, hair, nails, bones and body fluids, which constitutes about 20% of the adult body weight and made up of amino acids which main sources are from animal sources like milk, eggs, meat, fish, cheese etc, and plant sources like pulses, cereals, beans, nuts, soya beans etc.

Health is the level of functional or metabolic efficiency of a living organism. In humans, it is the ability of individuals or communities to adapt and self-manage when facing physical, mental or social challenges.

Diet: In nutrition, diet is the sum of food consumed by a person or other organism especially a balanced food having all the nutrients needed by the body system.




RESEARCHWAP.NET is an online repository for free project topics and research materials, articles and custom writing of research works. We’re an online resource centre that provides a vast database for students to access numerous research project topics and materials. guides and assist Postgraduate, Undergraduate and Final Year Students with well researched and quality project topics, topic ideas, research guides and project materials. We’re reliable and trustworthy, and we really understand what is called “time factor”, that is why we’ve simplified the process so that students can get their research projects ready on time. Our platform provides more educational services, such as hiring a writer, research analysis, and software for computer science research and we also seriously adhere to a timely delivery.


Please feel free to carefully review some written and captured responses from our satisfied clients.

  • "Exceptionally outstanding. Highly recommend for all who wish to have effective and excellent project defence. Easily Accessable, Affordable, Effective and effective."

    Debby Henry George, Massachusetts Institute of Technology (MIT), Cambridge, USA.
  • "I saw this website on facebook page and I did not even bother since I was in a hurry to complete my project. But I am totally amazed that when I visited the website and saw the topic I was looking for and I decided to give a try and now I have received it within an hour after ordering the material. Am grateful guys!"

    Hilary Yusuf, United States International University Africa, Nairobi, Kenya.
  • " is a website I recommend to all student and researchers within and outside the country. The web owners are doing great job and I appreciate them for that. Once again, thank you very much "" and God bless you and your business! ."

    Debby Henry George, Massachusetts Institute of Technology (MIT), Cambridge, USA.
  • "Great User Experience, Nice flows and Superb functionalities.The app is indeed a great tech innovation for greasing the wheels of final year, research and other pedagogical related project works. A trial would definitely convince you."

    Lamilare Valentine, Kwame Nkrumah University, Kumasi, Ghana.
  • "I love what you guys are doing, your material guided me well through my research. Thank you for helping me achieve academic success."

    Sampson, University of Nigeria, Nsukka.
  • " is God-sent! I got good grades in my seminar and project with the help of your service, thank you soooooo much."

    Cynthia, Akwa Ibom State University .
  • "Sorry, it was in my spam folder all along, I should have looked it up properly first. Please keep up the good work, your team is quite commited. Am grateful...I will certainly refer my friends too."

    Elizabeth, Obafemi Awolowo University
  • "Am happy the defense went well, thanks to your articles. I may not be able to express how grateful I am for all your assistance, but on my honour, I owe you guys a good number of referrals. Thank you once again."

    Ali Olanrewaju, Lagos State University.
  • "My Dear Researchwap, initially I never believed one can actually do honest business transactions with Nigerians online until i stumbled into your website. You have broken a new legacy of record as far as am concerned. Keep up the good work!"

    Willie Ekereobong, University of Port Harcourt.
  • "WOW, SO IT'S TRUE??!! I can't believe I got this quality work for just 3k...I thought it was scam ooo. I wouldn't mind if it goes for over 5k, its worth it. Thank you!"

    Theressa, Igbinedion University.
  • "I did not see my project topic on your website so I decided to call your customer care number, the attention I got was epic! I got help from the beginning to the end of my project in just 3 days, they even taught me how to defend my project and I got a 'B' at the end. Thank you so much, infact, I owe my graduating well today to you guys...."

    Joseph, Abia state Polytechnic.
  • "My friend told me about ResearchWap website, I doubted her until I saw her receive her full project in less than 15 miniutes, I tried mine too and got it same, right now, am telling everyone in my school about, no one has to suffer any more writing their project. Thank you for making life easy for me and my fellow students... Keep up the good work"

    Christiana, Landmark University .
  • "I wish I knew you guys when I wrote my first degree project, it took so much time and effort then. Now, with just a click of a button, I got my complete project in less than 15 minutes. You guys are too amazing!."

    Musa, Federal University of Technology Minna
  • "I was scared at first when I saw your website but I decided to risk my last 3k and surprisingly I got my complete project in my email box instantly. This is so nice!!!."

    Ali Obafemi, Ibrahim Badamasi Babangida University, Niger State.
  • To contribute to our success story, send us a feedback or please kindly call 2348037664978.
    Then your comment and contact will be published here also with your consent.

    Thank you for choosing