What are the standards to write info objects

Question

i appended one structure in BSEG table in r/3 for  data source 0FI_GL_4 and through that structure  i added some z fields to it . now in bw i have to create info objects for those fields .i created data source in which all fiels are populating correctly  only i have to  create new info objects for new fileds .i am very new to BI please tell me what standards to follow to create  info objects. and also tell me which field fell under char field catalog and which field under key field catalog
i am giving the field names
ZZFUNDNO  CHAR 8
ZZGRPOLICY CHAR 15
ZZAGENTNO CHAR 10
ZZTRTYNO2 CHAR 12
  ZZCEDAMT CHAR 14
  ZZPLANCODE CHAR  6
ZZAGENTID CHAR 10
  ZZFOAGNTNO CHAR 10
  ZZFOAGNTID CHAR 10
  ZZACCIDTYR CHAR 4
  ZZDESKCODE CHAR 8
  ZZORIGCOMP CHAR 6
  ZZORIGACCT CHAR 24
  ZZTRTYATR1 CHAR 22
  ZZTRTYATR2 CHAR 35
  ZZCLAIMNO CHAR 12
  ZZADMSYST CHAR 8
  ZZAPPROVER CHAR 8
  ZZOPERATOR CHAR 10
  ZZCHECKNO CHAR 10
  ZZCHCKDATE DATS 8
  ZZINVOICNO CHAR 12
ZZVENDORS CHAR 12
  ZZVOUCHRNO CHAR 12
  ZZITEMID CHAR 5
  ZZPAYEE CHAR 20
  ZZEFTVDATE DATS 8
  ZZDESCR CHAR 22
  ZZSUBCODE CHAR 4
  please help me in this regard

Answer 1

HI,
for creating a Infoobject go through the following link.
http://help.sap.com/saphelp_nw2004s/helpdata/en/80/1a63b3e07211d2acb80000e829fbfe/frameset.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/80/1a63b3e07211d2acb80000e829fbfe/frameset.htm
for your second doubt, the all fields you have mentioned here is Char and DAT data types. So all will be in Character field catelog.
Since mostly keyfigures will have the following data types only.
    Amount, Number, Date, Quantity, Integer, Time.
You can use DAT fields as keyfigures but you have to decide that.
rgrds,
v.sen.