Hemiptera plant. Phloem sap, which has a higher concentration of sugars and nitrogen, is under positive pressure unlike the more dilute xylem sap. Most of the Sternorrhyncha and a number of Auchenorrhynchan groups feed on phloem. Phloem feeding is common in the Fulgoromorpha, most Cicadellidae and in the Heteroptera. The Typhlocybine Cicadellids specialize in feeding on non-vascular mesophyll tissue of leaves, which is more nutritious than the leaf epidermis. Most Heteroptera also feed on mesophyll tissue where they are more likely to encounter defensive secondary plant metabolites which often leads to the evolution of host specificity. Obligate xylem feeding is a
SAP implementation the implementation process is planned and executed using a solid method. There are various SAP implementation methods. An example of how one company, Robert Bosch GmbH, implemented SAP R/3 over 10 years is available. This study shows that designing IT architecture is critical in SAP implementation practices. IEEE scholar journal reports an industrial case in which the senior management successfully dealt with a troubled SAP R/3 implementation in an international fast-moving consumer goods (FMCG) company during 2001 and 2002. (Lui 2008) The following table provides a summary of all of the activities that form the SAP implementation process. These activities