Kategorier: Alle - problem - solution - exercise - analysis

av Gary Sibbitts 10 år siden

312

650 3) Target Heart Rate - with validation - table of values

A target heart rate is the optimal pulse rate an individual should aim to maintain during exercise to maximize cardiovascular benefits without risking health. Typically, it is calculated as a percentage (

650 3) Target Heart Rate - with validation - table of values

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Welcome

Researching and describing a problem clearly is the foundation for solving it. Solutions based on incomplete research or poor descriptions can often fail to reach the root causes.

This Smart Map helps you to research and describe a problem from a number of different angles. It contains a mix of factual information-gathering tools and lateral thinking techniques, to develop perspectives that can point towards solutions.

You can use this map individually and in collaboration with others. It is vital to get consensus on the actual problem you are facing, otherwise there may be no consensus on the solution. Putting the descriptions together in one place helps you to explain and agree upon the basis for finding and evaluating solutions.

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Target Heart Rate

Definition

Highest heart rate an individual can achieve without dying!

Heart rate you want be at when you are exercising.

** 50% to 85% of maximum heart rate - american heart assoc. heart.org

maximum heart rate = 220 - age

60% to 80% of maximum heart rate - wiki how

mayo clinic - moderate exercise and vigorous


Double the resting heart rate

650 3) Target Heart Rate - with validation - table of values

Write a program that has something to do with Target Heart Rates

Be the problem

Be the problem is a popular technique for understanding problems. It means developing a character for the problem and describing its nature as if it were a person.

Insight

Analogies

Can you find analogies for this problem?
The underlying characteristics of a problem can sometimes be clearer when it is taken out of context.

What is it like?

Six serving men

"Six Serving Men" is based on Rudyard Kipling's poem, which begins:

''I keep six honest serving men
(They taught me all I knew);
Their names are What and Why and When
And How and Where and Who.''


We can profile a problem and perhaps discover more about it by asking structured questions.

Who?
Who not?
Where?
Where not?
How?
How not?
When?
When not?
Why?
Why not?
What?
What not?

Impact analysis

Impact analysis looks at who is affected by the problem - what the consequences are, rather than the causes.

Person
Impact

Root cause analysis

For analytical problems, root cause analysis can help to unravel indirect causes of problems, leading to more effective solutions. One way to do this is to keep asking "Why?" down to five levels, to understand the reasons behind the reasons.

Cause

Solution criteria

How will you know when you have solved the problem?
* What will a successful resolution look like?
* How will you filter and assess potential solutions?
* How will you verify that the issue has been solved?
You might want to return to the solution criteria several times as you develop the definition of the problem.

console application

What assumptions are you making?

In identifying the problem and the probability of a solution, what assumptions are you making?

Assumptions can sometimes be hard to see or accept. For example, if the "problem" is that sales of a certain product are too low, you may naturally aim to increase sales. You are ''assuming'' that the market demand for this product will continue. But if the demand disappeared overnight in a storm of negative publicity, then the original problem and solution also change. So the problem and logical solution are partly based on an assumption.

user will enter a whole number for the age
we will not consider a person's weight or health

What don't you know?

What other information might help, but is not available today?
* How would it help?
* How could you obtain it?
* Can you work without it?
* What are the risks or consequences of not knowing?
* Who else might have further information and insight?

Unknouns
user's age

Constraint - age must be between 5 and 75 inclusive

What do you know?

Factual data about the problem

maximum target heart rate

85% of the maximum heart rate

minimum target heart rate

minimum target heart rate is 50% of maximum heart rate

minimumTargetHeartRate = .50 * maximumHeartRate


since 50% is represented as a floating point number, .50 that can't be stored as an integer

minimumTargetHeartRate = (50 / 100) * maximumHeartRate / 1

minimumTargetHeartRate = (50 * maximumHeartRate ) / 100




maximum heart rate

220 - age

Starting Project

Problem type

What tools or patterns apply?

What is the best way to visualize or represent the inputs and outputs for the program?

Expression or series of expressions(simple algorithm)
Timeline?
Collection?

Think about the different types of math word problems you "know" how to solve.

Simple Input/Process/Output
Output(s)

display a table of values for a range of ages

Process(es)
Input(s)
What do we really need to do?

Use Case
Display user's Target Heart Rate Information
Computer: displays intro message(s)
Computer: Ask user to enter their age
User: Enters their age
Computer: display maximum heart rate, minimum target heart rate and the maximum target heart rate
Computer: program exits