Représentation (tabulaire) d'un indicateur de performance clé
Un KPI évalue la performance d'une valeur, définie par une mesure de base, par rapport à une valeur cible.
Représentation d'un indicateur de performance clé
Dans les modèles d'objet tabulaire, un indicateur de performance clé (KPI) est une mesure comprenant des informations supplémentaires pour afficher graphiquement l'application cliente. Un KPI comprend généralement des informations sur l'objectif visé, l'état de la mesure par rapport à l'objectif et des informations destinées à l'outil client pour afficher graphiquement l'état.
Indicateur de performance clé dans AMO
Lorsque vous utilisez AMO pour gérer un KPI de modèle tabulaire il n'y a pas de correspondance d'objet un-à-un, l'objet AMO Kpi n'est pas utilisée à cet effet ; dans AMO, pour les modèles tabulaires, un KPI est représenté par la série d'objets créés dans un des éléments de la collection Commands et de la collection CalculationProperties.
L'extrait de code suivant montre comment créer une définition de KPI parmi les nombreuses possibles.
private void addStaticKPI(object sender, EventArgs e)
{
double KPIGoal = 0, status1ThresholdValue = 0, status2ThresholdValue = 0
, redAreaValue = 0, yellowAreaValue = 0, greenAreaValue = 0;
string clientStatusGraphicImageName = "Three Circles Colored";
//Verify input requirements
//Goal values
if (staticTargetKPI.Checked)
{//Static KPI Goal selected
if (string.IsNullOrEmpty(staticTargetKPIGoal.Text)
|| string.IsNullOrWhiteSpace(staticTargetKPIGoal.Text)
|| !double.TryParse(staticTargetKPIGoal.Text, out KPIGoal))
{
MessageBox.Show(String.Format("Static Goal is not defined or is not a valid number."), "AMO to Tabular message", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
else
{//Measure KPI Goal selected
if (!TargetMeasureForKPISelected)
{
MessageBox.Show(String.Format("Measure Goal is not selected."), "AMO to Tabular message", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
//Status
if (string.IsNullOrEmpty(firstStatusThresholdValue.Text)
|| string.IsNullOrWhiteSpace(firstStatusThresholdValue.Text)
|| !double.TryParse(firstStatusThresholdValue.Text, out status1ThresholdValue)
|| string.IsNullOrEmpty(secondStatusThresholdValue.Text)
|| string.IsNullOrWhiteSpace(secondStatusThresholdValue.Text)
|| !double.TryParse(secondStatusThresholdValue.Text, out status2ThresholdValue))
{
MessageBox.Show(String.Format("Status Threshold are not defined or they are not a valid number."), "AMO to Tabular message", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (string.IsNullOrEmpty(statusValueRedArea.Text)
|| string.IsNullOrWhiteSpace(statusValueRedArea.Text)
|| !double.TryParse(statusValueRedArea.Text, out redAreaValue)
|| string.IsNullOrEmpty(statusValueYellowArea.Text)
|| string.IsNullOrWhiteSpace(statusValueYellowArea.Text)
|| !double.TryParse(statusValueYellowArea.Text, out yellowAreaValue)
|| string.IsNullOrEmpty(statusValueGreenArea.Text)
|| string.IsNullOrWhiteSpace(statusValueGreenArea.Text)
|| !double.TryParse(statusValueGreenArea.Text, out greenAreaValue))
{
MessageBox.Show(String.Format("Status Area values are not defined or they are not a valid number."), "AMO to Tabular message", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
//Set working variables
string kpiTableName = ((DataRowView)MeasuresInModelList.CheckedItems[0])[0].ToString();
string kpiMeasureName = ((DataRowView)MeasuresInModelList.CheckedItems[0])[1].ToString();
//Verify if KPI is already defined
if (modelCube.MdxScripts["MdxScript"].CalculationProperties.Contains(string.Format("KPIs.[{0}]", kpiMeasureName)))
{
//ToDo: Verify with the user if wants to update KPI or exit
//If user wants to update then remove KPI from mdxScripts and continue with the creating the KPI
//
// Until the code to remove KPI is finished we'll have to exit with a message of no duplicated KPIs are allowed
MessageBox.Show(String.Format("Another KPI exists for the same measeure."), "AMO to Tabular message", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
StringBuilder kpiCommand = new StringBuilder();
AMO.MdxScript mdxScript = modelCube.MdxScripts["MdxScript"];
kpiCommand.Append(mdxScript.Commands[1].Text);
string goalExpression;
if (staticTargetKPI.Checked)
{//Static KPI Goal selected
goalExpression = KPIGoal.ToString();
}
else
{//Measure KPI Goal selected
string measureGoalMeasureName = ((DataRowView)KpiTargetMeasures.CheckedItems[0])[1].ToString();
goalExpression = string.Format("[Measures].[{0}]", measureGoalMeasureName);
}
kpiCommand.AppendLine(string.Format("CREATE MEMBER CURRENTCUBE.Measures.[_{1} Goal] AS '{2}', ASSOCIATED_MEASURE_GROUP = '{0}';"
, kpiTableName, kpiMeasureName, goalExpression));
string statusExpression;
if (staticTargetKPI.Checked)
{//Static KPI Goal selected
statusExpression = string.Format("KpiValue(\"{0}\")", kpiMeasureName).Trim();
}
else
{//Measure KPI Goal selected
string measureGoalMeasureName = ((DataRowView)KpiTargetMeasures.CheckedItems[0])[1].ToString().Trim();
string M = string.Format("[Measures].[{0}]", kpiMeasureName);
string T = string.Format("[Measures].[{0}]", measureGoalMeasureName);
if (KpiRelationDifference.Checked)
{
statusExpression = string.Format("{1} - {0}", M, T);
}
else
{
if (KpiRelationRatioMT.Checked)
{
statusExpression = string.Format("{0} / {1}", M, T);
}
else
{
statusExpression = string.Format("{1} / {0}", M, T);
}
}
}
kpiCommand.AppendLine(string.Format("CREATE MEMBER CURRENTCUBE.Measures.[_{1} Status] "
+ " AS 'Case When IsEmpty({9}) Then Null "
+ " When ({9}) {2} {3} Then {4} "
+ " When ({9}) {5} {6} Then {7} "
+ " Else {8} End'"
+ ", ASSOCIATED_MEASURE_GROUP = '{0}';"
, kpiTableName, kpiMeasureName // 0, 1
, statusThreshold1ComparisonOperator.Text, status1ThresholdValue, redAreaValue // 2, 3, 4
, statusThreshold2ComparisonOperator.Text, status2ThresholdValue, yellowAreaValue, greenAreaValue // 5, 6, 7, 8
, statusExpression // 9
));
kpiCommand.AppendLine(string.Format("CREATE MEMBER CURRENTCUBE.Measures.[_{1} Trend] AS '0', ASSOCIATED_MEASURE_GROUP = '{0}';"
, kpiTableName, kpiMeasureName));
kpiCommand.AppendLine(string.Format("CREATE KPI CURRENTCUBE.[{1}] AS Measures.[{1}]"
+ ", ASSOCIATED_MEASURE_GROUP = '{0}'"
+ ", GOAL = Measures.[_{1} Goal]"
+ ", STATUS = Measures.[_{1} Status]"
+ ", TREND = Measures.[_{1} Trend]"
+ ", STATUS_GRAPHIC = '{2}'"
+ ", TREND_GRAPHIC = '{2}';"
, kpiTableName, kpiMeasureName, clientStatusGraphicImageName));
{//Adding Calculation Reference for the Measure itself
if (!mdxScript.CalculationProperties.Contains(kpiMeasureName))
{
AMO.CalculationProperty cp = new AMO.CalculationProperty(kpiMeasureName, AMO.CalculationType.Member);
cp.FormatString = ""; // ToDo: Get formatting attributes for the member
cp.Visible = true;
mdxScript.CalculationProperties.Add(cp);
}
}
{//Adding Calculation Reference for the Goal measure
AMO.CalculationProperty cp = new AMO.CalculationProperty(string.Format("Measures.[_{0} Goal]", kpiMeasureName), AMO.CalculationType.Member);
cp.FormatString = ""; // ToDo: Get formatting attributes for the member
cp.Visible = false;
mdxScript.CalculationProperties.Add(cp);
}
{//Adding Calculation Reference for the Status measure
AMO.CalculationProperty cp = new AMO.CalculationProperty(string.Format("Measures.[_{0} Status]", kpiMeasureName), AMO.CalculationType.Member);
cp.FormatString = ""; // ToDo: Get formatting attributes for the member
cp.Visible = false;
mdxScript.CalculationProperties.Add(cp);
}
{//Adding Calculation Reference for the Status measure
AMO.CalculationProperty cp = new AMO.CalculationProperty(string.Format("Measures.[_{0} Trend]", kpiMeasureName), AMO.CalculationType.Member);
cp.FormatString = ""; // ToDo: Get formatting attributes for the member
cp.Visible = false;
mdxScript.CalculationProperties.Add(cp);
}
{//Adding Calculation Reference for the KPI
AMO.CalculationProperty cp = new AMO.CalculationProperty(string.Format("KPIs.[{0}]", kpiMeasureName), AMO.CalculationType.Member);
cp.FormatString = ""; // ToDo: Get formatting attributes for the member
cp.Visible = true;
mdxScript.CalculationProperties.Add(cp);
}
try
{
newDatabase.Update(AMO.UpdateOptions.ExpandFull, AMO.UpdateMode.UpdateOrCreate);
MessageBox.Show(String.Format("KPI successfully defined."), "AMO to Tabular message", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (AMO.OperationException amoOperationException)
{
//ToDo: remove anything left in mdxScript up to the point where the exception was thrown
MessageBox.Show(String.Format("Error creating KPI for Measure '{0}'[{1}]\nError message: {2}", kpiTableName, kpiMeasureName, amoOperationException.Message), "AMO to Tabular message", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
Exemple AMO2Tabular
Pour savoir comment utiliser AMO pour créer et manipuler des représentations d'indicateur de performance clé, consultez le code source de l'exemple Objets AMO vers objets tabulaires ; plus précisément, archivez le fichier source suivant : AddKPIs.cs. L'exemple est disponible sur Codeplex. Remarque importante à propos du code : le code est fourni uniquement comme un support aux concepts logiques expliqués ici et ne doit pas être utilisé dans un environnement de production, ni à des fins autres que pédagogiques.